Home / 667,363,630.80-1,001,045,446.20-394,593,992.40

Finding the Fourth Proportional to 667,363,630.80, 1,001,045,446.20 and 394,593,992.40

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Solution

The fourth proportional to 667,363,630.80, 1,001,045,446.20 and 394,593,992.40 is: 591,890,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,363,630.80 : 1,001,045,446.20 = 394,593,992.40 : x
  2. Step 2: Convert to fraction form
    667,363,630.80/1,001,045,446.20 = 394,593,992.40/x
  3. Step 3: Cross multiply
    667,363,630.80x = 1,001,045,446.20 × 394,593,992.40
  4. Step 4: Simplify right side
    667,363,630.80x = 395,006,519,189,897,408
  5. Step 5: Solve for x
    x = 395,006,519,189,897,408/667,363,630.80
  6. Step 6: Final answer
    x = 591,890,988.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.